US5149996A - Magnetic gain adjustment for axially magnetized linear force motor with outwardly surfaced armature - Google Patents

Magnetic gain adjustment for axially magnetized linear force motor with outwardly surfaced armature Download PDF

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Publication number
US5149996A
US5149996A US07/474,960 US47496090A US5149996A US 5149996 A US5149996 A US 5149996A US 47496090 A US47496090 A US 47496090A US 5149996 A US5149996 A US 5149996A
Authority
US
United States
Prior art keywords
armature
linear force
face
force motor
magnetic field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/474,960
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English (en)
Inventor
Mark A. Preston
Frederick W. Stingle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RTX Corp
Original Assignee
United Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Priority to US07/474,960 priority Critical patent/US5149996A/en
Assigned to UNITED TECHNOLOGIES CORPORATION, HARTFORD, CT., A CORP. OF DE. reassignment UNITED TECHNOLOGIES CORPORATION, HARTFORD, CT., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PRESTON, MARK A., STINGLE, FREDERICK W.
Priority to DE9191630008T priority patent/DE69100046T2/de
Priority to EP91630008A priority patent/EP0441737B1/de
Priority to JP3035536A priority patent/JPH04217851A/ja
Application granted granted Critical
Publication of US5149996A publication Critical patent/US5149996A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

Definitions

  • the housing 6 and the armature assembly 13 cooperate to displace the armature assembly 13 in an axial direction (i.e. in a direction coincident with the central axis of the armature assembly 13).
  • the spring 10 is fixedly attached to the armature assembly 13 by any well know means so that displacement of the armature assembly 13 causes the spring 10 to exert a force which opposes the direction of displacement.
  • the spring 10 exerts a force either by extension or compression depending upon the position of the armature assembly 13 within the housing 6.
  • the magnitude of the force of the spring 10 is linearly proportional to displacement of the armature assembly 13 within the housing 6.
  • the faces 14, 16 and the surface 31 comprise all of the critical surfaces (i.e. surfaces through which flux which substantially contributes to motion of the armature 4 passes) of the armature 4. Since all of the critical surfaces face outwardly from the armature 4, the armature 4 is an outwardly surfaced armature. Note that no flux which substantially contributes to motion of the armature 4 passes through the inwardly facing surface 12 of the armature 4.
  • the invention could employ faces which are neither parallel nor perpendicular to the axis of displacement.
  • the less parallel that the faces are and the less perpendicular that the faces are to the axis of displacement the more that the intensity of the magnetic fields must be increased in order to establish a given amount of force.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Linear Motors (AREA)
US07/474,960 1990-02-05 1990-02-05 Magnetic gain adjustment for axially magnetized linear force motor with outwardly surfaced armature Expired - Fee Related US5149996A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US07/474,960 US5149996A (en) 1990-02-05 1990-02-05 Magnetic gain adjustment for axially magnetized linear force motor with outwardly surfaced armature
DE9191630008T DE69100046T2 (de) 1990-02-05 1991-01-31 Magnetische gewinnregelung fuer einen axialmagnetisierten linearkraftmotor mit einem durch ein gehaeuse umgebenen anker.
EP91630008A EP0441737B1 (de) 1990-02-05 1991-01-31 Magnetische Gewinnregelung für einen axialmagnetisierten Linearkraftmotor mit einem durch ein Gehäuse umgebenen Anker
JP3035536A JPH04217851A (ja) 1990-02-05 1991-02-05 線形駆動モータ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/474,960 US5149996A (en) 1990-02-05 1990-02-05 Magnetic gain adjustment for axially magnetized linear force motor with outwardly surfaced armature

Publications (1)

Publication Number Publication Date
US5149996A true US5149996A (en) 1992-09-22

Family

ID=23885678

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/474,960 Expired - Fee Related US5149996A (en) 1990-02-05 1990-02-05 Magnetic gain adjustment for axially magnetized linear force motor with outwardly surfaced armature

Country Status (4)

Country Link
US (1) US5149996A (de)
EP (1) EP0441737B1 (de)
JP (1) JPH04217851A (de)
DE (1) DE69100046T2 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999049556A1 (fr) * 1998-03-25 1999-09-30 Detra S.A. Convertisseur d'energie mecanique en energie electrique et appareil electronique muni d'un tel convertisseur
KR100407897B1 (ko) * 2001-09-04 2003-12-06 한국과학기술원 기동자석형 ｖｃｍ을 이용한 정밀 액츄에이터스테이지장치
US6870285B2 (en) * 2001-02-27 2005-03-22 Bei Technologies, Inc. Long stroke linear voice coil actuator with the proportional solenoid type characteristic
US20060163951A1 (en) * 2002-07-01 2006-07-27 Centre National De La Recherche Scientifique (Cnrs) Linear actuator or generator with rods
CN104167895A (zh) * 2014-08-20 2014-11-26 浙江万向精工有限公司 双向线性力马达
US9395511B1 (en) 2014-01-30 2016-07-19 Magnet-Schultz Of America, Inc. Voice coil actuator with integrated LVDT
CN108885082A (zh) * 2016-04-08 2018-11-23 瑞尼斯豪公司 坐标定位机器
US10236109B1 (en) * 2017-10-17 2019-03-19 Glen A Robertson Magnetic spring assembly for mass dampers
US11361894B2 (en) * 2018-03-13 2022-06-14 Husco Automotive Holdings Llc Bi-stable solenoid with an intermediate condition
US20220262554A1 (en) * 2021-02-15 2022-08-18 Husco Automotive Holdings Llc Multi-Stable Solenoid Having an Intermediate Pole Piece
US12057267B2 (en) 2018-05-07 2024-08-06 G. W. Lisk Company, Inc. Single coil apparatus and method
US12412691B2 (en) 2020-10-01 2025-09-09 G.W. Lisk Company, Inc. Method and apparatus having a single coil with embedded magnets

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788163B1 (fr) 1998-12-30 2001-03-16 Sextant Avionique Actionneur electromagnetique equipe de moyens d'ajustement de la position de son element polaire mobile
EP1860669A1 (de) * 2006-05-23 2007-11-28 LIU, Ming-Hwa Stromgesteuerte-/ angetriebene Ausgleichs-/ Verstärkungsvorrichtung

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2128044A (en) * 1935-10-26 1938-08-23 Westinghouse Electric & Mfg Co Dynamo-electric machine
US2610993A (en) * 1951-07-12 1952-09-16 Gen Electric Adjustable magnetic shunt for permanent magnet generators
US3202886A (en) * 1962-01-11 1965-08-24 Bulova Watch Co Inc Bistable solenoid
US3460081A (en) * 1967-05-31 1969-08-05 Marotta Valve Corp Electromagnetic actuator with permanent magnets
US3634734A (en) * 1969-07-16 1972-01-11 Fmc Corp Scr control for inductive power circuit
US3728654A (en) * 1970-09-26 1973-04-17 Hosiden Electronics Co Solenoid operated plunger device
US4127835A (en) * 1977-07-06 1978-11-28 Dynex/Rivett Inc. Electromechanical force motor
US4144514A (en) * 1976-11-03 1979-03-13 General Electric Company Linear motion, electromagnetic force motor
US4235153A (en) * 1978-11-02 1980-11-25 General Electric Company Linear motion, electromagnetic force motor
US4533890A (en) * 1984-12-24 1985-08-06 General Motors Corporation Permanent magnet bistable solenoid actuator
US4631430A (en) * 1985-06-17 1986-12-23 Moog Inc. Linear force motor
US4710656A (en) * 1986-12-03 1987-12-01 Studer Philip A Spring neutralized magnetic vibration isolator
US4827163A (en) * 1986-03-04 1989-05-02 Mechanical Technology Incorporated Monocoil reciprocating permanent magnet electric machine with self-centering force
US4831292A (en) * 1988-05-27 1989-05-16 Hughes Aircraft Company Linear motor arrangement with center of mass balancing
US4899074A (en) * 1987-10-13 1990-02-06 Magneti Marelli Electrical Limited Permanent magnet rotary dynamo electric machines
US4924123A (en) * 1987-12-18 1990-05-08 Aisin Seiki Kabushiki Kaisha Linear generator
US4928028A (en) * 1989-02-23 1990-05-22 Hydraulic Units, Inc. Proportional permanent magnet force actuator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5889059A (ja) * 1981-11-16 1983-05-27 ム−グ・インコ−ポレ−テツド 電気機械式アクチユエ−タ

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2128044A (en) * 1935-10-26 1938-08-23 Westinghouse Electric & Mfg Co Dynamo-electric machine
US2610993A (en) * 1951-07-12 1952-09-16 Gen Electric Adjustable magnetic shunt for permanent magnet generators
US3202886A (en) * 1962-01-11 1965-08-24 Bulova Watch Co Inc Bistable solenoid
US3460081A (en) * 1967-05-31 1969-08-05 Marotta Valve Corp Electromagnetic actuator with permanent magnets
US3634734A (en) * 1969-07-16 1972-01-11 Fmc Corp Scr control for inductive power circuit
US3728654A (en) * 1970-09-26 1973-04-17 Hosiden Electronics Co Solenoid operated plunger device
US4144514A (en) * 1976-11-03 1979-03-13 General Electric Company Linear motion, electromagnetic force motor
US4127835A (en) * 1977-07-06 1978-11-28 Dynex/Rivett Inc. Electromechanical force motor
US4235153A (en) * 1978-11-02 1980-11-25 General Electric Company Linear motion, electromagnetic force motor
US4533890A (en) * 1984-12-24 1985-08-06 General Motors Corporation Permanent magnet bistable solenoid actuator
US4631430A (en) * 1985-06-17 1986-12-23 Moog Inc. Linear force motor
US4827163A (en) * 1986-03-04 1989-05-02 Mechanical Technology Incorporated Monocoil reciprocating permanent magnet electric machine with self-centering force
US4710656A (en) * 1986-12-03 1987-12-01 Studer Philip A Spring neutralized magnetic vibration isolator
US4899074A (en) * 1987-10-13 1990-02-06 Magneti Marelli Electrical Limited Permanent magnet rotary dynamo electric machines
US4924123A (en) * 1987-12-18 1990-05-08 Aisin Seiki Kabushiki Kaisha Linear generator
US4831292A (en) * 1988-05-27 1989-05-16 Hughes Aircraft Company Linear motor arrangement with center of mass balancing
US4928028A (en) * 1989-02-23 1990-05-22 Hydraulic Units, Inc. Proportional permanent magnet force actuator

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Characteristics and Optimal Design of Variable Airgap Liner Force Motors by M. C. Leu et al. from IEE Proceedings, vol. 135, No. 6, Nov. 1988. *
Direct Drive Servovalve Activities at Moog by W. J. Thayer presented at SAE A 60 Meeting, Long Beach, Cailf., Oct. 7, 1983. *
Direct-Drive Servovalve Activities at Moog by W. J. Thayer presented at SAE A-60 Meeting, Long Beach, Cailf., Oct. 7, 1983.

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999049556A1 (fr) * 1998-03-25 1999-09-30 Detra S.A. Convertisseur d'energie mecanique en energie electrique et appareil electronique muni d'un tel convertisseur
US6870285B2 (en) * 2001-02-27 2005-03-22 Bei Technologies, Inc. Long stroke linear voice coil actuator with the proportional solenoid type characteristic
KR100407897B1 (ko) * 2001-09-04 2003-12-06 한국과학기술원 기동자석형 ｖｃｍ을 이용한 정밀 액츄에이터스테이지장치
US20060163951A1 (en) * 2002-07-01 2006-07-27 Centre National De La Recherche Scientifique (Cnrs) Linear actuator or generator with rods
US7372178B2 (en) * 2002-07-01 2008-05-13 Centre National De La Recherche Scientifique (Cnrs) Linear actuator or generator with rods
US9395511B1 (en) 2014-01-30 2016-07-19 Magnet-Schultz Of America, Inc. Voice coil actuator with integrated LVDT
CN104167895A (zh) * 2014-08-20 2014-11-26 浙江万向精工有限公司 双向线性力马达
CN108885082B (zh) * 2016-04-08 2022-09-16 瑞尼斯豪公司 坐标定位机器
US11300396B2 (en) 2016-04-08 2022-04-12 Renishaw Plc Coordinate positioning machine
CN108885082A (zh) * 2016-04-08 2018-11-23 瑞尼斯豪公司 坐标定位机器
CN115371605A (zh) * 2016-04-08 2022-11-22 瑞尼斯豪公司 坐标定位机器
CN115371605B (zh) * 2016-04-08 2026-03-17 瑞尼斯豪公司 坐标定位机器
US10236109B1 (en) * 2017-10-17 2019-03-19 Glen A Robertson Magnetic spring assembly for mass dampers
US11361894B2 (en) * 2018-03-13 2022-06-14 Husco Automotive Holdings Llc Bi-stable solenoid with an intermediate condition
US20220375672A1 (en) * 2018-03-13 2022-11-24 Husco Automotive Holdings Llc Bi-Stable Solenoid With an Intermediate Condition
US11901120B2 (en) * 2018-03-13 2024-02-13 Husco Automotive Holdings Llc Bi-stable solenoid with an intermediate condition
US12057267B2 (en) 2018-05-07 2024-08-06 G. W. Lisk Company, Inc. Single coil apparatus and method
US12412691B2 (en) 2020-10-01 2025-09-09 G.W. Lisk Company, Inc. Method and apparatus having a single coil with embedded magnets
US20220262554A1 (en) * 2021-02-15 2022-08-18 Husco Automotive Holdings Llc Multi-Stable Solenoid Having an Intermediate Pole Piece

Also Published As

Publication number Publication date
JPH04217851A (ja) 1992-08-07
EP0441737A1 (de) 1991-08-14
DE69100046D1 (de) 1993-04-29
EP0441737B1 (de) 1993-03-24
DE69100046T2 (de) 1993-08-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: UNITED TECHNOLOGIES CORPORATION, HARTFORD, CT., A

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:PRESTON, MARK A.;STINGLE, FREDERICK W.;REEL/FRAME:005227/0374;SIGNING DATES FROM 19900129 TO 19900130

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19960925

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362